Never make these mistakes in Chinese 72

Foreigners often make some strange mistakes in Chinese when they study the most difficult language— —Chinese. We try to analyze typical sentences to correct these errors.

          Māmɑ bǐ wǔ nián qián jiù duō le.
False: 妈妈比五年前旧多了。
          Māmɑ bǐ wǔ nián qián lǎo duō le.
True: 妈妈比五年前老多了。